Rename supplicant RC file config variable in Redbull makefile.

Bug: 208265623
Test: Build for Redbull target.
Change-Id: I043c354e295de2cbb966dd5977d9b4834474b3ce
diff --git a/BoardConfig-common.mk b/BoardConfig-common.mk
index bbfcfe1..c986c23 100644
--- a/BoardConfig-common.mk
+++ b/BoardConfig-common.mk
@@ -422,7 +422,7 @@
 WIFI_HIDL_FEATURE_DUAL_INTERFACE:= true
 WIFI_FEATURE_WIFI_EXT_HAL := true
 WIFI_FEATURE_IMU_DETECTION := true
-WIFI_HIDL_UNIFIED_SUPPLICANT_SERVICE_RC_ENTRY := true
+WIFI_HAL_UNIFIED_SUPPLICANT_SERVICE_RC_ENTRY := true
 
 # Audio
 BOARD_USES_ALSA_AUDIO := true